Press



W. C; BOWDEN.

PRESS.

APPLICATION men JULY 20,1920.

1,399,843, Patnted Dec.13, 1921.

stares eaten orr cs.

WILLIAM G. ownnni ornrrnnnn VILLAGE: Lone ISLAND, New Yong.

Panes.

n Specification of Letters Patent. Patentgd Dec, 13, 192 1",

7 Application filed'July 2c, 1920. Seria1 No. 397,577.

To all whom it may concern:

Be it, known that 1, WILLIAM C. Bowosn, a citizen of the United States, residing in Middle Village, county of Queens, Long Island, New York, have invented certain new and useful Improvements in Presses, of which the following is a specification.

This invention relates to presses, and its object is to provide a press in which the pressing or die members are arranged so as to be movable to a position where they may be conveniently inspected, the movement of one of the die members causing the other member to move to a position angularly displaced with respect to its normal position in the press. 7

In the drawings, one embodiment of the invention is shown, in which:

Figure 1 is a fragmentary side elevation of the press, partly in section, and showing one of the die members, indicated by dotted" lines, in position for inspection;

Fig. 2 is an end elevation of the apparatus, and

Fig. 3 is a top planview, partly in section, and partly fragmentary.

In the illustrated embodiment, upper and lower press or jaw members are indicated by A and B respectively, the upper memher being reciprocable, and the lower member being stationary,'to form a bed. The pres shown may be of the hydraulic type, although the invention may be applied, to other types of presses, as, for instance, toggle presses.

A die proper, comprising an upper and lower member or matrix holder, indicated by C and D respectively, is positioned to be pressed between members A and B. These members are arranged to be movable from their normal position between the jaws A and B, so that the initial movement of the lower member away from its normal position cause a corresponding movement of the upper member, at first substantially parallel with the lower member, until the press members A and B are cleared, then, as the movement is continued at increasing angular inclination, until a position is reached which permit convenient access to the faces of the dies.

A matrix-E maybe secured to the upper member 0, in the customary manner, while a matrix or blank F may be secured to the lower member D. In some arts it is customary to use but one matrix, while, in

other arts, for instance, the embossing art, 1t is customary to use a pair of matrices or dies, the members E and F in the latter case corresponding to the usual'male and female die. A guideway H is preferably provided in the member B, to guide the slidable member D, 'anda stop I to limit the rearward sliding movement. The member D is provided, at its rear end, with upstanding posts J, preferably having vertical guide slots K formed therein. The upper die member 'G is preferably provided with a rearwardly extending bracket orbearing L, carryin-g a transverse bar M,'the ends of which engage the slots K ofthe upstanding members J, to guide the member 0. In order to provide for the swinging of the upper die member to the position indicated by dotted line in Fig.1, a horizontal groove Gr may be,

and preferably is, provided inthe press member A, or in any convenientstationary member. A roller N is arranged to slide in said groove, and is,in the illustrated embodiment, connected to the upper die member by a link or post 0, preferably secured to the member C. In order to provideclearance for the roller N, when the press is'in operation, a verticallyextending recess P communicating with the groove G is provided, so that, as the jaws close, the post may enter it. 1

The device operates as follows The member A of the press is brought to its upper or retracted position, as shown in Fig.1,and the member D movedto the position shown in Fig. 1. The thermo.- plastic or other materials to be operated upon are then placed in position for pressing,

embossing or the like, and the press operated in the usualv manner, until it is desired to' change or inspect the matrix. VVhensuch inspection or change is to be made, the member D is moved outwardly by the handle Q, thus causing the member C to move, and

the roller N, through the link 0, to slide in As the roller N strikes the end of the groove G, the further movethe groove G.

ment of-the member, D causes the upper die member to swin to the position shown by dotted lines in ig. 1.

Various modifications may be made in the construction shown, without departing from the spirit and scope of the appended claims. For instance, it is not essential that the upper member 0 and the member-D be connected, since the provision of a post J,

bearing against the rear end of the member C, would sufiice to effect the movement desired. Furthermore, the upper die member might be provided with a handle, soas to swing this member on the roller N, without necessarily moving the lower die member.

What I claim is: V

1. In a press, the combination of relatively movable upper and lower press members, upper and lower die members, the die members movable outwardly of the press mem bers when the latter are separated, and the upper die member mounted to swing upwardly, and a connection from the lower to the upper die member adapted upon the moving of the lower member outwardly to move outwardly and swing upwardly the upper member, and the upper die and press members reciprocally constructed to permit the descent of the press member when the die member is restored to normal pressing position.

2. In a press according to claim 1, the upper die member having a horizontal slid- 7 ing engagement with the upper press mem ber, and a pivotal connection on which it may, swing upwardly when displaced beyond the press member.

in a press according to claim 1, the upper and'lower die members adaptedto slide horizontally, and pin and slot connection between them adapted to communicate slidmg movement from one to the other, and to permit the descent of the upper die member during pressing.

4. 1n a press, the combination of an upper press member, an upper die member, and means connecting-the upper press member and the upper die member, to permit the upper die member to swing to a position angularly, inclined with respect to its normal position in the press, a lower die memher having a post adapted to cooperate with said upper die member and to swing it to an inclined position when the lower die member is moved. r

5. In a press, the combination of a bed for the press, a lower die member guided in said bed, a movable upper press member having a horizontal slot, an upper die member connected to said upper press member by a link, one end of said link being carried in said slot, and the other end being connected to the upper die 'member, the upper die member being adapted to move to position angularly inclined with respect to its normal position in the press when the lower member is moved.

In witness whereof, I have hereunto signed my name. I ILLIAM G. 'BOWDEN. 

